3.26.1 html 144 251 1 false 41 0 false 9 false false R1.htm 0000001 - Document - Cover Sheet http://www.belden.com/role/Cover Cover Cover 1 false false R2.htm 9952151 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS Sheet http://www.belden.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS CONDENSED CONSOLIDATED BALANCE SHEETS Statements 2 false false R3.htm 9952152 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME Sheet http://www.belden.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONSANDCOMPREHENSIVEINCOME CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME Statements 3 false false R4.htm 9952153 - Statement - CONDENSED CONSOLIDATED CASH FLOW STATEMENTS Sheet http://www.belden.com/role/CONDENSEDCONSOLIDATEDCASHFLOWSTATEMENTS CONDENSED CONSOLIDATED CASH FLOW STATEMENTS Statements 4 false false R5.htm 9952154 - Statement - CONDENSED CONSOLIDATED STOCKHOLDERS’ EQUITY STATEMENTS Sheet http://www.belden.com/role/CONDENSEDCONSOLIDATEDSTOCKHOLDERSEQUITYSTATEMENTS CONDENSED CONSOLIDATED STOCKHOLDERS’ EQUITY STATEMENTS Statements 5 false false R6.htm 9952155 - Statement - CONDENSED CONSOLIDATED STOCKHOLDERS’ EQUITY STATEMENTS (Parenthetical) Sheet http://www.belden.com/role/CONDENSEDCONSOLIDATEDSTOCKHOLDERSEQUITYSTATEMENTSParenthetical CONDENSED CONSOLIDATED STOCKHOLDERS’ EQUITY STATEMENTS (Parenthetical) Statements 6 false false R7.htm 9952156 - Disclosure - Summary of Significant Accounting Policies Sheet http://www.belden.com/role/SummaryofSignificantAccountingPolicies Summary of Significant Accounting Policies Notes 7 false false R8.htm 9952157 - Disclosure - Revenues Sheet http://www.belden.com/role/Revenues Revenues Notes 8 false false R9.htm 9952158 - Disclosure - Income per Share Sheet http://www.belden.com/role/IncomeperShare Income per Share Notes 9 false false R10.htm 9952159 - Disclosure - Credit Losses Sheet http://www.belden.com/role/CreditLosses Credit Losses Notes 10 false false R11.htm 9952160 - Disclosure - Inventories Sheet http://www.belden.com/role/Inventories Inventories Notes 11 false false R12.htm 9952161 - Disclosure - Leases Sheet http://www.belden.com/role/Leases Leases Notes 12 false false R13.htm 9952162 - Disclosure - Long-Lived Assets Sheet http://www.belden.com/role/LongLivedAssets Long-Lived Assets Notes 13 false false R14.htm 9952163 - Disclosure - Long-Term Debt and Other Borrowing Arrangements Sheet http://www.belden.com/role/LongTermDebtandOtherBorrowingArrangements Long-Term Debt and Other Borrowing Arrangements Notes 14 false false R15.htm 9952164 - Disclosure - Net Investment Hedge Sheet http://www.belden.com/role/NetInvestmentHedge Net Investment Hedge Notes 15 false false R16.htm 9952165 - Disclosure - Income Taxes Sheet http://www.belden.com/role/IncomeTaxes Income Taxes Notes 16 false false R17.htm 9952166 - Disclosure - Pension and Other Postretirement Obligations Sheet http://www.belden.com/role/PensionandOtherPostretirementObligations Pension and Other Postretirement Obligations Notes 17 false false R18.htm 9952167 - Disclosure - Comprehensive Income and Accumulated Other Comprehensive Income (Loss) Sheet http://www.belden.com/role/ComprehensiveIncomeandAccumulatedOtherComprehensiveIncomeLoss Comprehensive Income and Accumulated Other Comprehensive Income (Loss) Notes 18 false false R19.htm 9952168 - Disclosure - Share Repurchase Sheet http://www.belden.com/role/ShareRepurchase Share Repurchase Notes 19 false false R20.htm 9952169 - Disclosure - Subsequent Events Sheet http://www.belden.com/role/SubsequentEvents Subsequent Events Notes 20 false false R21.htm 995445 - Disclosure - Insider Trading Arrangements Sheet http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements Insider Trading Arrangements Notes 21 false false R22.htm 9955511 - Disclosure - Summary of Significant Accounting Policies (Policies) Sheet http://www.belden.com/role/SummaryofSignificantAccountingPoliciesPolicies Summary of Significant Accounting Policies (Policies) Policies http://www.belden.com/role/SummaryofSignificantAccountingPolicies 22 false false R23.htm 9955512 - Disclosure - Revenues (Tables) Sheet http://www.belden.com/role/RevenuesTables Revenues (Tables) Tables http://www.belden.com/role/Revenues 23 false false R24.htm 9955513 - Disclosure - Income per Share (Tables) Sheet http://www.belden.com/role/IncomeperShareTables Income per Share (Tables) Tables http://www.belden.com/role/IncomeperShare 24 false false R25.htm 9955514 - Disclosure - Credit Losses (Tables) Sheet http://www.belden.com/role/CreditLossesTables Credit Losses (Tables) Tables http://www.belden.com/role/CreditLosses 25 false false R26.htm 9955515 - Disclosure - Inventories (Tables) Sheet http://www.belden.com/role/InventoriesTables Inventories (Tables) Tables http://www.belden.com/role/Inventories 26 false false R27.htm 9955516 - Disclosure - Leases (Tables) Sheet http://www.belden.com/role/LeasesTables Leases (Tables) Tables http://www.belden.com/role/Leases 27 false false R28.htm 9955517 - Disclosure - Long-Term Debt and Other Borrowing Arrangements (Tables) Sheet http://www.belden.com/role/LongTermDebtandOtherBorrowingArrangementsTables Long-Term Debt and Other Borrowing Arrangements (Tables) Tables http://www.belden.com/role/LongTermDebtandOtherBorrowingArrangements 28 false false R29.htm 9955518 - Disclosure - Pension and Other Postretirement Obligations (Tables) Sheet http://www.belden.com/role/PensionandOtherPostretirementObligationsTables Pension and Other Postretirement Obligations (Tables) Tables http://www.belden.com/role/PensionandOtherPostretirementObligations 29 false false R30.htm 9955519 - Disclosure - Comprehensive Income and Accumulated Other Comprehensive Income (Loss) (Tables) Sheet http://www.belden.com/role/ComprehensiveIncomeandAccumulatedOtherComprehensiveIncomeLossTables Comprehensive Income and Accumulated Other Comprehensive Income (Loss) (Tables) Tables http://www.belden.com/role/ComprehensiveIncomeandAccumulatedOtherComprehensiveIncomeLoss 30 false false R31.htm 9955520 - Disclosure - Summary of Significant Accounting Policies (Details) Sheet http://www.belden.com/role/SummaryofSignificantAccountingPoliciesDetails Summary of Significant Accounting Policies (Details) Details http://www.belden.com/role/SummaryofSignificantAccountingPoliciesPolicies 31 false false R32.htm 9955521 - Disclosure - Revenues - Schedule of Major Product Category (Details) Sheet http://www.belden.com/role/RevenuesScheduleofMajorProductCategoryDetails Revenues - Schedule of Major Product Category (Details) Details 32 false false R33.htm 9955522 - Disclosure - Revenues - Schedule of Location of Customer (Details) Sheet http://www.belden.com/role/RevenuesScheduleofLocationofCustomerDetails Revenues - Schedule of Location of Customer (Details) Details 33 false false R34.htm 9955523 - Disclosure - Revenues - Schedule of Estimated and Accrued Variable Consideration (Details) Sheet http://www.belden.com/role/RevenuesScheduleofEstimatedandAccruedVariableConsiderationDetails Revenues - Schedule of Estimated and Accrued Variable Consideration (Details) Details 34 false false R35.htm 9955524 - Disclosure - Revenues - Additional information (Details) Sheet http://www.belden.com/role/RevenuesAdditionalinformationDetails Revenues - Additional information (Details) Details 35 false false R36.htm 9955525 - Disclosure - Revenues - Schedule of Deferred Revenue (Details) Sheet http://www.belden.com/role/RevenuesScheduleofDeferredRevenueDetails Revenues - Schedule of Deferred Revenue (Details) Details 36 false false R37.htm 9955526 - Disclosure - Revenues - Schedule of Sales Commissions (Details) Sheet http://www.belden.com/role/RevenuesScheduleofSalesCommissionsDetails Revenues - Schedule of Sales Commissions (Details) Details 37 false false R38.htm 9955527 - Disclosure - Income Per Share - Schedule of Basis for Income Per Share Computations (Details) Sheet http://www.belden.com/role/IncomePerShareScheduleofBasisforIncomePerShareComputationsDetails Income Per Share - Schedule of Basis for Income Per Share Computations (Details) Details 38 false false R39.htm 9955528 - Disclosure - Income per Share - Additional Information (Details) Sheet http://www.belden.com/role/IncomeperShareAdditionalInformationDetails Income per Share - Additional Information (Details) Details 39 false false R40.htm 9955529 - Disclosure - Credit Losses (Details) Sheet http://www.belden.com/role/CreditLossesDetails Credit Losses (Details) Details http://www.belden.com/role/CreditLossesTables 40 false false R41.htm 9955530 - Disclosure - Inventories (Details) Sheet http://www.belden.com/role/InventoriesDetails Inventories (Details) Details http://www.belden.com/role/InventoriesTables 41 false false R42.htm 9955531 - Disclosure - Leases - Additional Information (Details) Sheet http://www.belden.com/role/LeasesAdditionalInformationDetails Leases - Additional Information (Details) Details 42 false false R43.htm 9955532 - Disclosure - Leases - Schedule of Components of Lease Expense (Details) Sheet http://www.belden.com/role/LeasesScheduleofComponentsofLeaseExpenseDetails Leases - Schedule of Components of Lease Expense (Details) Details 43 false false R44.htm 9955533 - Disclosure - Leases - Schedule of Supplemental Cash Flow Information Related To Leases (Details) Sheet http://www.belden.com/role/LeasesScheduleofSupplementalCashFlowInformationRelatedToLeasesDetails Leases - Schedule of Supplemental Cash Flow Information Related To Leases (Details) Details 44 false false R45.htm 9955534 - Disclosure - Leases - Schedule of Supplemental Balance Sheet Information Related To Leases (Details) Sheet http://www.belden.com/role/LeasesScheduleofSupplementalBalanceSheetInformationRelatedToLeasesDetails Leases - Schedule of Supplemental Balance Sheet Information Related To Leases (Details) Details 45 false false R46.htm 9955535 - Disclosure - Leases - Schedule of Supplemental Other Information Related To Leases (Details) Sheet http://www.belden.com/role/LeasesScheduleofSupplementalOtherInformationRelatedToLeasesDetails Leases - Schedule of Supplemental Other Information Related To Leases (Details) Details 46 false false R47.htm 9955536 - Disclosure - Long-Lived Assets (Details) Sheet http://www.belden.com/role/LongLivedAssetsDetails Long-Lived Assets (Details) Details http://www.belden.com/role/LongLivedAssets 47 false false R48.htm 9955537 - Disclosure - Long-Term Debt and Other Borrowing Arrangements - Schedule of Carrying Values of Long-Term Debt and Other Borrowing Arrangements (Details) Sheet http://www.belden.com/role/LongTermDebtandOtherBorrowingArrangementsScheduleofCarryingValuesofLongTermDebtandOtherBorrowingArrangementsDetails Long-Term Debt and Other Borrowing Arrangements - Schedule of Carrying Values of Long-Term Debt and Other Borrowing Arrangements (Details) Details 48 false false R49.htm 9955538 - Disclosure - Long-Term Debt and Other Borrowing Arrangements - Additional Information (Details) Sheet http://www.belden.com/role/LongTermDebtandOtherBorrowingArrangementsAdditionalInformationDetails Long-Term Debt and Other Borrowing Arrangements - Additional Information (Details) Details 49 false false R50.htm 9955539 - Disclosure - Net Investment Hedge (Details) Sheet http://www.belden.com/role/NetInvestmentHedgeDetails Net Investment Hedge (Details) Details http://www.belden.com/role/NetInvestmentHedge 50 false false R51.htm 9955540 - Disclosure - Income Taxes (Details) Sheet http://www.belden.com/role/IncomeTaxesDetails Income Taxes (Details) Details http://www.belden.com/role/IncomeTaxes 51 false false R52.htm 9955541 - Disclosure - Pension and Other Postretirement Obligations (Details) Sheet http://www.belden.com/role/PensionandOtherPostretirementObligationsDetails Pension and Other Postretirement Obligations (Details) Details http://www.belden.com/role/PensionandOtherPostretirementObligationsTables 52 false false R53.htm 9955542 - Disclosure - Comprehensive Income and Accumulated Other Comprehensive Income (Loss) - Schedule of Total Comprehensive Income (Loss) (Details) Sheet http://www.belden.com/role/ComprehensiveIncomeandAccumulatedOtherComprehensiveIncomeLossScheduleofTotalComprehensiveIncomeLossDetails Comprehensive Income and Accumulated Other Comprehensive Income (Loss) - Schedule of Total Comprehensive Income (Loss) (Details) Details http://www.belden.com/role/ComprehensiveIncomeandAccumulatedOtherComprehensiveIncomeLossTables 53 false false R54.htm 9955543 - Disclosure - Comprehensive Income and Accumulated Other Comprehensive Income (Loss) - Schedule of Components of Other Comprehensive Income (Loss), Net of Tax (Details) Sheet http://www.belden.com/role/ComprehensiveIncomeandAccumulatedOtherComprehensiveIncomeLossScheduleofComponentsofOtherComprehensiveIncomeLossNetofTaxDetails Comprehensive Income and Accumulated Other Comprehensive Income (Loss) - Schedule of Components of Other Comprehensive Income (Loss), Net of Tax (Details) Details http://www.belden.com/role/ComprehensiveIncomeandAccumulatedOtherComprehensiveIncomeLossTables 54 false false R55.htm 9955544 - Disclosure - Comprehensive Income and Accumulated Other Comprehensive Income (Loss) - Narrative (Details) Sheet http://www.belden.com/role/ComprehensiveIncomeandAccumulatedOtherComprehensiveIncomeLossNarrativeDetails Comprehensive Income and Accumulated Other Comprehensive Income (Loss) - Narrative (Details) Details http://www.belden.com/role/ComprehensiveIncomeandAccumulatedOtherComprehensiveIncomeLossTables 55 false false R56.htm 9955545 - Disclosure - Comprehensive Income and Accumulated Other Comprehensive Income (Loss) - Schedule of Effects of Reclassifications from Accumulated Other Comprehensive Income (Loss) (Details) Sheet http://www.belden.com/role/ComprehensiveIncomeandAccumulatedOtherComprehensiveIncomeLossScheduleofEffectsofReclassificationsfromAccumulatedOtherComprehensiveIncomeLossDetails Comprehensive Income and Accumulated Other Comprehensive Income (Loss) - Schedule of Effects of Reclassifications from Accumulated Other Comprehensive Income (Loss) (Details) Details http://www.belden.com/role/ComprehensiveIncomeandAccumulatedOtherComprehensiveIncomeLossTables 56 false false R57.htm 9955546 - Disclosure - Share Repurchase (Details) Sheet http://www.belden.com/role/ShareRepurchaseDetails Share Repurchase (Details) Details http://www.belden.com/role/ShareRepurchase 57 false false R58.htm 9955547 - Disclosure - Subsequent Events (Details) Sheet http://www.belden.com/role/SubsequentEventsDetails Subsequent Events (Details) Details http://www.belden.com/role/SubsequentEvents 58 false false All Reports Book All Reports bdc-20260628.htm bdc-20260628.xsd bdc-20260628_cal.xml bdc-20260628_def.xml bdc-20260628_lab.xml bdc-20260628_pre.xml http://fasb.org/us-gaap/2026 http://xbrl.sec.gov/dei/2026 http://xbrl.sec.gov/ecd/2026 true true